<template>
    <div class="xtx-numbox">
      <div class="label">{{label}}</div>
      <div class="numbox">
        <a @click="changeNum(-step)" href="javascript:;">-</a>
        <input type="text" readonly :value="modelValue">
        <a @click="changeNum(step)" href="javascript:;">+</a>
      </div>
    </div>
  </template>


<script setup name="XtxNumbox">
import { defineProps, defineEmits } from 'vue';
const props = defineProps({
  modelValue: {
    type: Number,
    default: 1
  },
  label: {
    type: String,
    default: '数量'
  },
  min: {
    type: Number,
    default: 1
  },
  max: {
    type: Number,
    default: 100
  },
  step: {
    type: Number,
    default: 1
  }
})
const emit = defineEmits(['update:modelValue'])
const changeNum = (num) => {
  const TempNum = props.modelValue + num
  if (TempNum > props.max || TempNum < props.min) return
  emit('update:modelValue', TempNum)
}
</script>


<style scoped lang="less">
.xtx-numbox {
  display: flex;
  align-items: center;
  .label {
    width: 60px;
    color: #999;
    padding-left: 10px;
  }
  .numbox {
    width: 120px;
    height: 30px;
    border: 1px solid #e4e4e4;
    display: flex;
    > a {
      width: 29px;
      line-height: 28px;
      text-align: center;
      background: #f8f8f8;
      font-size: 16px;
      color: #666;
      &:first-of-type {
        border-right:1px solid #e4e4e4;
      }
      &:last-of-type {
        border-left:1px solid #e4e4e4;
      }
    }
    > input {
      width: 60px;
      padding: 0 5px;
      text-align: center;
      color: #666;
    }
  }
}
</style>